Does anyone know anything about Suburban heaters?  I have a NT12LEC unit
installed in the Westy.  It's thermostatically controlled and electronically
ignited. The blower is 12v and the fuel is from the central LP tank.  When
the thermostat kicks on, the blower will start and run continuously, but no
heat.  I do hear one click, but nothing that sounds like gas igniting.
There's a red push button behind the grill, but I'm not sure what it's
supposed to do (see red arrow in pic below).  I gather the heater has not
been used in the last year.  I do have gas in the tank and I'm reasonably
certain that there is not a gas cutoff in the line somewhere, so I'm
confident that it is getting gas.  Any idea how I can test the ignition
unit?  Any thoughts on what the big red button does?

http://www.skipemmert.com/vanquestions/heater.jpg

Thanks for any help,

Skip Emmert-Keaton
1980 Westy <Ziegelstein>